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Monthly climate in Manaus, Brazil

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Manaus features a tropical rainforest climate (Af). Temperatures typically range between 26 °C (79 °F) and 28 °C (83 °F) through the year, but rarely can drop to 21 °C (70 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 2640 mm (104.0 inches) and receives 275 rainy days on the 1 mm (0.04 inches) threshold annually. Manaus enjoys an average of 3184 hours of sunshine throughout the year, and daylight varies from 11 hours 56 minutes to 12 hours 17 minutes per day.

Monthly average temperatures in Manaus, Brazil

The warmest months in Manaus are August, September and October, with daily mean temperatures ranging from 28 to 28 °C (82 - 83 °F) throughout the day. The coldest temperatures usually occur in January, February and April, when daily mean temperatures range from 26 to 26 °C (79 - 79 °F) throughout the day. On average each year, Manaus experiences 329 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Manaus. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum34°C
(93°F)		33°C
(92°F)		33°C
(93°F)		33°C
(92°F)		34°C
(93°F)		33°C
(91°F)		34°C
(93°F)		36°C
(98°F)		36°C
(98°F)		37°C
(99°F)		35°C
(96°F)		34°C
(93°F)
Mean maximum33°C
(91°F)		32°C
(90°F)		33°C
(92°F)		32°C
(90°F)		32°C
(91°F)		32°C
(89°F)		33°C
(92°F)		35°C
(96°F)		35°C
(96°F)		35°C
(95°F)		34°C
(94°F)		33°C
(91°F)
Average high30°C
(86°F)		30°C
(86°F)		30°C
(86°F)		30°C
(86°F)		30°C
(86°F)		30°C
(87°F)		31°C
(88°F)		33°C
(91°F)		33°C
(91°F)		32°C
(90°F)		31°C
(88°F)		30°C
(86°F)
Daily mean26°C
(79°F)		26°C
(79°F)		26°C
(80°F)		26°C
(79°F)		26°C
(80°F)		27°C
(80°F)		27°C
(81°F)		28°C
(82°F)		28°C
(83°F)		28°C
(82°F)		27°C
(81°F)		26°C
(79°F)
Average low24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(75°F)
Mean minimum22°C
(72°F)		23°C
(73°F)		22°C
(73°F)		23°C
(73°F)		23°C
(73°F)		23°C
(73°F)		22°C
(72°F)		22°C
(73°F)		23°C
(73°F)		22°C
(73°F)		23°C
(74°F)		22°C
(72°F)
Minimum22°C
(71°F)		22°C
(72°F)		22°C
(72°F)		22°C
(72°F)		22°C
(72°F)		22°C
(72°F)		21°C
(70°F)		22°C
(72°F)		22°C
(73°F)		22°C
(71°F)		23°C
(73°F)		22°C
(72°F)

Compare climate in Manaus with other places

Compare temperature, precipitation, sunshine, UV index in Manaus, Brazil with other places around the world.

Monthly average precipitation in Manaus, Brazil

Manaus usually has the most precipitation in March, April and December, with an average of 28 rainy days and 349 mm (13.7 inches) of precipitation per month. The driest months in Manaus are July, August and September. On average, 87 mm (3.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Manaus. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)238 (9.4)242 (9.5)349 (13.7)341 (13.4)316 (12.5)147 (5.8)87 (3.4)59 (2.3)116 (4.6)171 (6.7)219 (8.6)356 (14.0)
Average precipitation days (≥ 1 mm)232428292922161317202529

Monthly sunshine hours in Manaus, Brazil

The sunniest months in Manaus are July, August and September, when the sun shines an average of 10 hours 26 minutes a day. Least sunny months in Manaus: January, February and April receive an average of 7 hours 1 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Manaus. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours205207242219271298327323309293253230
Mean daily daylight hours12h 15m12h 11m12h 6m12h 1m11h 57m11h 56m11h 56m12h 0m12h 4m12h 9m12h 14m12h 17m

Solar UV radiation in Manaus, Brazil

Manaus experiences the highest level of ultraviolet (UV) radiation in February, March and April, when the maximum UV index can reach values of 16 - 16, which corresponds to the Extreme category of sun exposure. June, July and August are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 12. For more detailed information, check out our hourly Manaus UV Index data.

Average daily maximum UV levels by month for Manaus. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)151616161312111113131413